365.173 Wireless Emergency Telephone System Fund--
(1) All revenues derived from the E911 fee levied on subscribers under s. 365.172 must be paid into the State Treasury on or before the 15th day of each month. Such moneys must be accounted for in a special fund to be designated as the Wireless Emergency Telephone System Fund, a fund created in the State Technology Office and must be invested by the State Treasurer pursuant to s. 18.125. All moneys in such fund are to be expended by the State Technology Office for the purposes provided in this section and s. 365.172. These funds are not subject to s. 215.20.
(2) Subject to any modifications approved by the board pursuant to s. 365.172(8)(c), the moneys in the fund shall be distributed and used only as follows:
(a) Forty-four percent of the moneys shall be distributed each month to counties, based on the total number of wireless subscriber billing addresses in each county, for payment of:
1. Recurring costs of providing 911 or E911 service, as provided by s. 365.171(13)(a)6.
2. Costs to comply with the requirements for E911 service contained in the order and any future rules related to the order.
A county may carry forward, for up to 3 successive calendar years, up to 30 percent of the total funds disbursed to the county by the board during a calendar year for expenditures for capital outlay, capital improvements, or equipment replacement, if such expenditures are made for the purposes specified in this paragraph.
(b) Fifty-four percent of the moneys shall be distributed in response to sworn invoices submitted to the board by providers to reimburse such providers for the actual costs incurred to provide 911 or E911 service, including the costs of complying with the order. Such costs include costs and expenses incurred by providers to design, purchase, lease, program, install, test, upgrade, operate, and maintain all necessary data, hardware, and software required to provide E911 service. Up to 2 percent of the funds allocated to providers shall be retained by the board to be applied to costs and expenses incurred for the purposes of managing, administering, and overseeing the receipts and disbursements from the fund. Any funds retained for such purposes in a calendar year which are not applied to such costs and expenses by March 31 of the following year shall be distributed to providers pursuant to this paragraph. Beginning in state fiscal year 2000-2001, each provider shall submit to the board, by August 1 of each year, a detailed estimate of the capital and operating expenses for which it anticipates that it will seek reimbursement under this paragraph during the ensuing state fiscal year. By September 15 of each year, the board shall submit to the Legislature its legislative budget request for funds to be allocated to providers under this paragraph during the ensuing state fiscal year. The budget request shall be based on the information submitted by the providers and estimated surcharge revenues. Distributions of moneys in the fund by the board to providers must be fair and nondiscriminatory. If the total amount of moneys requested by providers pursuant to invoices submitted to the board and approved for payment exceeds the amount in the fund in any month, providers that have invoices approved for payment shall receive a pro rata share of moneys in the fund and the balance of the payments shall be carried over to the following month or months until all of the approved payments are made. The board may adopt rules necessary to address the manner in which pro rata distributions are made when the total amount of funds requested by providers pursuant to invoices submitted to the board exceeds the total amount of moneys on deposit in the fund.
(c) Two percent of the moneys shall be used to make monthly distributions to rural counties for the purpose of providing facilities and network and service enhancements and assistance for the 911 or E911 systems operated by rural counties and for the provision of reimbursable loans and grants by the office to rural counties for upgrading 911 systems.
The Legislature recognizes that the wireless E911 fee authorized under s. 365.172 will not necessarily provide the total funding required for establishing or providing the 911 service. It is the intent of the Legislature that all revenue from the fee be used as specified in s. 365.171(13)(a) 6.
(3) The Auditor General shall annually audit the fund to ensure that moneys in the fund are being managed in accordance with this section and s. 365.172. The Auditor General shall provide a report of the annual audit to the board.
365.174 Proprietary confidential business information--
(1) All proprietary confidential business information submitted by a provider to the board or the office, including the name and billing or service addresses of service subscribers, and trade secrets as defined by s. 812.081, is confidential and exempt from s. 119.07(1) and s. 24(a), Art. I of the State Constitution. Statistical abstracts of information collected by the board or the office may be released or published, but only in a manner that does not identify or allow identification of subscribers or their service numbers or of revenues attributable to any provider.
(2) As used in this section, "proprietary confidential business information" means customer lists, customer numbers, and other related information, technology descriptions, technical information, or trade secrets, including trade secrets as defined in s. 812.081, and the actual or developmental costs of E911 systems that are developed, produced, or received internally by a provider or by a provider's employees, directors, officers, or agents.
(3) This section is subject to the Open Government Sunset Review Act of 1995 in accordance with s. 119.15, and shall stand repealed on October 1, 2004, unless reviewed and saved from repeal through reenactment by the Legislature.
APPENDIX 2.0 MUTUAL AID AND INTERLOCAL AGREEMENTS
2.1
SAMPLE MUTUAL AID AGREEMENT
THIS AGREEMENT, made and entered into this _____ day of, ____________ ____, by and between the County of ______________ located in the State of Florida, hereinafter referred to as the COUNTY, and the Cities of ______________, ______________, ______________, incorporated municipalities, located in _______________ County, Florida, hereinafter referred to as the MUNICIPALITIES, pursuant to the Florida Interlocal Cooperation Act of 1969, Section 163.01, et seq., Florida Statutes.
Whereas, the Parties hereto are desirous of implementing 365.171-174, F.S., relating to a statewide emergency telephone number “911” system plan, and
Whereas the Parties hereto are desirous of ensuring that all of their citizens receive emergency service in time of need,
NOW, THEREFORE, BE IT AGREED among the parties hereto as follows:
-
All parties herein receive emergency phone calls relating to public safety from the “911” Answering Center and who is referred to as the Answering Center.
-
All parties herein recognize that there is a possibility that a call to a public safety agency may be inadvertently directed from the Answering Center to an agency with contiguous boundaries.
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To ensure the citizen receives the fastest possible response time, all parties herein agree to respond to a call after it is dispatched even though it may mean crossing jurisdictional boundaries. This will be done pursuant to paragraph 6 of this document.
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The misdirected call can be re-routed for dispatch to the proper jurisdictional agency if it is determined by the Answering Center that re-direction would not increase response time.
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No party to this agreement will charge another for rendering service in another’s jurisdictional area under provisions of this agreement.
-
There will be no reimbursement for loss or damage to equipment while engaged in activity pursuant to this agreement, nor shall there be any liability for compensation or indemnity to officers or employees or one party to another arising out of performance of this agreement.
-
This agreement will be in effect for an indefinite period, or until such time that the operating parameters of the “911” Answering Center make it unnecessary.
-
This agreement will be in effect immediately upon the signatures of all of the parties listed herein.
Signature block should conform with generally accepted contract procedures for governing bodies.
2.2
SAMPLE
INTERLOCAL AGREEMENT
FOR CALL HANDLING IN BOUNDARY OVERLAP AREAS
THIS AGREEMENT, made and entered into this _____ day of ______________, _____, by and between the County of ______________ located in the Sate of Florida, hereinafter referred to as the “FIRST PARTY”, and the County of ______________, located in the State of Florida, hereinafter referred to as the “SECOND PARTY”, pursuant to the Florida Interlocal Cooperation Act of 1969, Section 163.01, et seq., F.S.
WITNESSETH
Whereas, the Parties hereto are desirous of implementing 365.171-174, F.S., relating to a statewide emergency telephone number “911” system plan, and
Whereas, the Parties hereto recognize that telephone company central office boundaries do not coincide with jurisdictional boundaries and as such a portion of the emergency calls of the SECOND PARTY will be handled by the FIRST PARTY’s 911 Answering Center.
Whereas, the Parties hereto recognize that due to this central office boundary overlap, emergency calls will have to be routed back to a public safety agency or the 911 Answering Center in the originating county.
Now, due to consideration cited above, the parties hereto agree as follows:
-
The ______________ central office overlaps into ______________ County. The people in this area will have their calls answered at the 911 center in ______________ County.
-
The SECOND PARTY agrees to pay a pro rata share of the necessary costs including trunk lines or central office modifications that are necessary to route calls in the central office overlap area to the 911 Answering Center of the FIRST PARTY.
-
The SECOND PARTY additionally agrees to pay the non-recurring and recurring costs for dedicated phone lines or toll calls to its public safety agencies.
-
Reimbursements due the FIRST PARTY by the SECOND PARTY will be paid within 30 days of billing.
-
Any liabilities incurred by the Parties hereto as a result of the operation of the Answering Center will be paid initially by the County, with each of the Parties subsequently paying their pro rata shares; except, that any individual action of an employee of one of the Parties hereto, and not in furtherance of the purposes herein stated, shall be borne individually by that Party.
-
Any disputes arising between the Parties hereto that cannot be settled by the Chief Information Officer (CIO) of the State Technology Office (STO) who shall serve as arbitrator and whose decision shall be binding on all Parties.
-
All funds, payments and disbursements on behalf of the Answering Center shall be strictly accountable by the Finance Department of the County, who shall conduct an annual audit of the Answering Center. A copy of this audit shall be available to the representatives of the SECOND PARTY. Neither party will attempt to rescind or amend this agreement without notifying the office of the CIO of STO 30 days prior to action by either party. The CIO will act in the interested of those affected by the central office boundary overlap and make his decision accordingly.
-
The terms of this agreement shall become effective immediately upon the approval by the respective Parties to the agreement.
Signature block should conform with generally accepted contract procedures for governing bodies.
2.3
SAMPLE INTERLOCAL AGREEMENT
FOR
COUNTY AND CITIES WITH SHERIFF AS ADMINISTRATOR
THIS AGREEMENT, made and entered into this _____ day of ______________, ____, by and between the County of ______________, located in the State of Florida, hereinafter referred to as the County, and the Cities of ______________, ______________, incorporated municipalities, located in ______________ County, Florida, hereinafter referred to as the MUNICIPALITIES, pursuant to the Florida Interlocal Cooperation Act of 1969, Section 163.01, et seq., Florida Statutes
WITNESSETH
Whereas, the Parties hereto are desirous of implementing 365.171-174, F.S., relating to a statewide emergency telephone number “911” system plan and
Whereas, the Parties hereto, are desirous to interface utilization of “911” as a number for procuring emergency services among the Parties hereto, and
Whereas, the Parties hereto desire to form a cooperative Answering Center, for the purpose of receiving and dispatching emergency calls.
Now, therefore, in consideration of the Mutual Promises made and hereinafter set forth, the parties hereto agree as follows:
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To form an association known as the ______________ County Cooperative “911” Answering Center, whose purpose is to provide emergency answering services for the parties herein, and who is referred to as the “Answering Center”.
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The County shall provide emergency call answering services for law enforcement, fire and emergency medical agencies 24 hours a day, 7 days a week, 365 days per year.
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The County shall hold the title, and have care, custody and control of equipment, furnishings and the Answering Center. The County shall further be responsible for planning, acquiring and maintaining the common equipment of the Answering Center.
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The County shall be in charge of hiring, training and disciplining of employees working on the premises of, or in conjunction with, the operation of the Answering Center, subject to the provisions of applicable civil service and merit systems.
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The County shall be in charge of the making and promulgation of any necessary rules, and regulations and their enforcement by and with the assistance of the participating Parties.
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The Parties herein agree to form the ______________ County Cooperative Answering Center Board of Governors. The Board of Governors shall consist of the Police Chiefs, Fire chiefs, Sheriff and the Emergency Medical Agency Director(s).
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All costs for operating and maintaining the communications center shall be paid initially by the County and purchases and contracts for the purpose of operating the Answering Center shall be in the name of the County, provided:
-
The Answering Center cost shall consist of the following items:
Answering Center, recorders, phone lines, equipment, salaries and benefits, center supplies and materials, depreciation of equipment, employee training and related expenses, publicity expenses, and other expenses agreed on by a majority of the Board of Governors.
-
The cost shall be pro rated among the Parties based on the percentage of the population of all the Parties herein. Population will be based on the population records of the ______________.
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The County shall maintain financial records relating to the cost of operating and maintaining the Answering Center, and said records shall be available to the Parties herein or their representative upon request, pursuant to Section 119.01, F.S.
-
Answering service payments from the Municipalities of the County shall be due the first day of each month.
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The period of the contract shall be for 60 months, or until such time as all parties mutually agree to termination.
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All gifts or grants in furtherance of the purpose of the Center shall be in the name of the County, and shall be used for the purpose of reducing the overall operating cost of the Center.
-
All claims for Federal or State aid for the operation of the Answering Center shall be made by the County.
-
Any liabilities incurred by the Parties hereto as a result of the operation of the Answering Center will be paid initially by the County, with each of the Parties subsequently paying their pro rata shares; except, that any individual action of an employee of one of the Parties hereto, and not in furtherance of the purposes herein stated, shall be borne individually by that Party.
-
Any disputes arising between the Parties hereto shall be decided by a majority vote of the Board of Governors and in the event that the controversy cannot be settled by the Board, then the CIO of STO shall serve as arbitrator whose decision shall be binding on all Parties.
-
All funds, payments and disbursements on behalf of the Answering Center shall be strictly accountable by the Finance Department of the County, who shall conduct an annual audit of the Answering Center. A copy of this audit shall be available to the representatives of any Party hereto.
-
By a unanimous vote of the Board of Governors, this contract may be wholly or partially amended.
-
It is agreed by the Parties hereto that the Sheriff of the County shall serve as the Administrator of the agreement in the manner provided herein.
-
The terms of this agreement shall become effective immediately upon the approval by the respective Parties to the agreement.
3.0
NENA MASTER GLOSSARY OF 9-1-1 TECHNOLOGY & ACRONYMS
TERM
|
DEFINITION
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1A2
|
A designation for Key Telephone Systems which utilize an "A" lead for control.
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9-1-1
|
A three-digit telephone number to facilitate the reporting of an emergency requiring response by a public safety agency.
|
9-1-1 Service Area
|
The geographic area that has been granted authority by a state or local governmental body to provide 9-1-1 service.
|
9-1-1 System
|
The set of network, database and CPE components required to provide 9-1-1 service.
|
9-1-1 Tandem
|
(See E9-1-1 Control Office)
|
“A” Lead Control
|
A wire used to control the Key Telephone Unit in a 1A2 type Key Telephone System. In some E9-1-1 systems it is used to identify the position connected to the trunk.
|
Abandoned Call
|
A call placed to 9-1-1 in which the caller disconnects before the call can be answered by the Public Safety Answering Point (PSAP) attendant.
|
Access Line
|
The connection between a customer premises network interface and the Local Exchange Carrier that provides access to the Public Switched Telephone Network (PSTN).
|
Advanced Mobile Phone Service (AMPS)
|
The analog radio interface utilized in cellular telephone systems.
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Alarm Dry Contacts
|
A set of relay contacts which are caused to either open or close when an alarm condition occurs. (Ref. NENA 04-001)
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ALI Retrieval
|
A request for ALI record from the PSAP to the ALI database.
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ALI Retrieval Rate
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The number of requests for ALI that are not duplicated within a two (2) minute time frame.
|
Alternate ISDN PSAP
|
(See Alternate PSAP)
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Alternate Number
|
Used in Interim Number Portability (INP), the caller’s original telephone number which is call forwarded to the new carrier’s telephone number. Also known as Call Forward Number.
|
Alternate PSAP
|
A PSAP designated to receive calls when the primary PSAP is unable to do so.
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Alternate Routing
|
The capability of routing 9-1-1 calls to a designated alternate location(s) if all 9-1-1 trunks toa primary PSAP are busy or out of service. May be activated upon request or automatically, if detectable, when 9-1-1 equipment fails or the PSAP itself is disabled.
|
American Standard Code for Information Interchange (ASCII)
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This standard defines the code for a character set to be used for information interchange between equipment of different manufacturers and is a standard for data communications over telephone lines. In the context of TDD/TTY this refers to both a binary code and modulation method used for 110/300 baud TDD/TTY communications.
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Amplitude Modulated
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The encoding of a carrier wave by variation of its amplitude in accordance with an input signal.
|
Angle of Arrival (AOA)
|
A terrestrial Location Determination Technology (LDT) that computes a transmitter’s location based upon the angle at which the transmitter’s radio signal strikes multiple receivers.
|
Answering Position
|
(See Attendant Position)
|
Attendant Position
|
The Customer Premises Equipment (CPE) at which calls are answered and responded to by the Telecommunicator.
|
Automatic Alarm and Automatic Alerting Device
|
Any automated device which will access the 9-1-1 system for emergency services upon activation and does not provide for two-way communication. (Many states prohibit the dialing of 9-1-1 by an automated device.).
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Automatic Call Distributor (ACD)
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Equipment that automatically distributes incoming calls to available PSAP attendants in the order the calls are received, or queues calls until an attendant becomes available.
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Automatic Location Identification (ALI)
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The automatic display at the PSAP of the caller’s telephone number, the address/location of the telephone and supplementary emergency services information.
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Automatic Location Identification (ALI) Call Retrieval
|
A process of counting ALI database queries not duplicated within a two (2) minute time frame.
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Automatic Location Identification (ALI) Customer Retrieval
|
A process of counting ALI database queries not duplicated within a twenty-four (24) hour time frame.
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Automatic Location Identification (ALI) Database
|
The set of ALI records residing on a computer system.
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Automatic Location Identification (ALI) Multiplexer
|
A CPE component which performs the function of communicating with the ALI database. An ALI Multiplexer typically works in conjunction with an ANI controller.
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Automatic Location Identification (ALI) Retrieval
|
The process of querying the 9-1-1 database for ALI records.
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Automatic Number Identification (ANI)
|
Telephone number associated with the access line from which a call originates.
|
Automatic Number Identification (ANI) Controller
|
A stand-alone CPE component which provides the ANI decoding and function key control for 9-1-1 service.
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Automatic Number Identification Information Digits (ANI II Digits)
|
Digits in the Enhanced MF Signaling protocol that indicate to the PSAP CPE ANI display device whether the display should remain steady or flash, or if the call is a test call.
|
Average Busy Hour
|
The 1-hour period during the week statistically shown over time to be the hour in which the most telephone calls are received.
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Backup Public Safety Answering Point (PSAP)
|
Typically a disaster recovery answering point which serves as a backup to the primary PSAP and is not co located with the primary PSAP.
|
Basic 9-1-1
|
An emergency telephone system which automatically connects callers to a designated answering point. Call routing is determined by originating central office only. Basic 9-1-1 may or may not support ANI and/or ALI.
|
Baud Rate
|
A measure of signaling speed in data communications that specifies the number of signaling elements that can be transmitted each second.
|
Baudot Code
|
A five bit encoding scheme that represents text and digits. It is the standard transmission signaling scheme used by TTY (TDD) devices. (per EIA PN 1663)
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Binary Coded Decimal (BCD)
|
A coding system in which each decimal digit from 0 to 9 is represented by four binary (0 or1) digits. (Ref. NENA 04-002)
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Busy Hour
|
The hour each day with the greatest call volume.
|
Busy Tone
|
An audible signal indicating a call cannot be completed because the called access line is busy. The tone is applied 60 times per minute.
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Call Check
|
(See Recall Recorder).
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Call Detail Logging
|
The process of recording incoming call data. Also known as ANI printout. (Ref. NENA 04-001)
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Call Progress Signals
|
Audible cues to advise 9-1-1 callers of the status of their call. (e.g. Busy Tone, Reorder Tone)
|
Call Relay
|
Forwarding of pertinent information by a PSAP attendant to the appropriate response agency (Not to be confused with Telephone Relay Service).
|
Call Sequencer
|
A unit which monitors incoming calls at a PSAP and indicates to the answering positions which of the incoming calls has been unanswered the longest.
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Call Transfer
|
The capability to redirect a call to another party.
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Calling Party Hold
|
The capability of the PSAP to maintain control of a 9-1-1 caller’s access line, even if the caller hangs up.
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Calling Party’s Number (CPN)
|
The call back number associated with a wireless telephone. (Similar to ANI for wireline telephones) (Ref. NENA 03-002)
|
Code Division Multiple Access (CDMA)
|
A digital radio interface utilized by some North American PCS carriers.
|
Carrier Frequency
|
The frequency of the unmodulated IRIG B or E signal. (Ref. NENA 04-002)
|
Cathode Ray Tube (CRT)
|
Video monitor used for displaying information.
|
Cell
|
The wireless telecommunications (Cellular or PCS) antenna serving a specific geographic area.
|
Cell face
|
(See Cell Sector)
|
Cell Sector
|
One face of a cell antenna (typically 3-sided) that operates independently of the other sectors.
|
Cell Site
|
The location of a cell and related equipment.
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Cellular Priority Access Service (CPAS)
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A uniform nationwide method of providing priority access to authorized wireless subscribers in the event of an emergency.
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Central Office (CO)
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The Local Exchange Carrier facility where access lines are connected to switching equipment for connection to the Public Switched Telephone Network.
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Central Processing Unit (CPU)
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The part of a computer which performs the logical, computational and decision making functions.
|
Centralized Automated Message Accounting (CAMA)
|
An MF signaling protocol originally designed for billing purposes, capable of transmitting a single telephone number.
|
Centrex
|
A business telephone service offered by some Local Exchange Carriers that provides PBX type features over access lines.
|
Circuit Route
|
The physical path between two terminal locations.
|
Class of Service
|
A designation of the type of telephone service, e.g. residential, business, centrex, coin, PBX, wireless.
|
Company Identifier (Company ID)
|
A 3-5 character identifier chosen by the Local Exchange Carrier that distinguishes the entity providing dial tone to the end user. The Company Identifier is maintained by NENA in a nationally accessible data base.
|
Computer Aided Dispatch (CAD)
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A computer based system which aids PSAP attendants by automating selected dispatching and record keeping activities.
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Conference Transfer
|
The capability to bridge a third party onto an existing call. Also known as three-way calling.
|
Consolidated PSAP
|
A facility where one or more Public Safety Agencies choose to operate as a single 9-1-1 entity.
|
Customer Comments
|
Supplementary information useful in dispatching provided in conjunction with ALI displays.
|
Customer Premises Equipment (CPE)
|
Terminal equipment at a PSAP.
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Cutover
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The activation of a new telephone call processing or switching system.
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Data Base
|
An organized collection of information, typically stored in computer systems, comprised of fields, records (data) and indexes. In 9-1-1, such data bases include MSAG, telephone number/ESN, and telephone customer records.
|
Data Base Management System (DBMS)
|
A system of manual procedures and computer programs used to create, store and update the data required to provide Selective Routing and/or Automatic Location Identification for 9-1-1 systems.
|
Data Base Management System Provider
|
Entity providing Selective Routing (SR) and/or Automatic Location Identification (ALI) data services.
|
Data Bit
|
A binary digit, either a zero (0) or a one (1).
|
Data Exchange
|
The process of exchanging 9-1-1 data between Service Providers and the Data Base Management System Provider.
|
Data Processing Day
|
The day in which processing of a given service order update occurs.
|
Decaying
|
Directions from positive to negative, relative to the starting points, whose transient amplitudes decay with time in a ringwave pattern. These transients are typically caused by sources internal to the PSAP (motor, lighting and inductive loads, etc.) (Ref. NENA 04-001).
|
Dedicated Trunk
|
A telephone circuit used for a single purpose; such as transmission of 9-1-1 calls.
|
Default Routing
|
The capability to route a 9-1-1 call to a designated (default) PSAP when the incoming 9-1-1 call cannot be selectively routed due to an ANI failure or other cause.
|
Dial Tone First
|
The provision of dial tone to enable a caller to originate and complete 9-1-1 calls from public telephones without inserting a coin or any other device. Also known as coin-free dialing.
|
Direct Dispatch
|
The performance of 9-1-1 call answering and dispatching by personnel at the primary PSAP.
|
Directory Number (DN)
|
A dialable 10-digit telephone number associated with a telephone subscriber or call destination.
|
Discrepancies
|
A Service Provider term used to describe subscriber records that do not match the MSAG and are referred to an error file or report for resolution.
|
Disk Operating System (DOS)
|
A personal computer operating system which manages the computer’s resources.
|
Diverse Routing
|
The practice of routing circuits along different physical paths in order to prevent total loss of 9-1-1 service in the event of a facility failure.
|
Dual Tone Multi-Frequency (DTMF)
|
One of the methods used for signaling in the telephone network. Often referred to as TOUCH-TONE™.
|
Electronic Key Telephone System (E-Key)
|
A multi-line telephone system which utilizes stored program control technology instead of KSUs and KTUs.
|
Emergency Call
|
A telephone request for public safety agency emergency services which requires immediate action to save a life, to report a fire or to stop a crime. May include other situations as determined locally.
|
Emergency Message (EM) Circuits
|
The special service circuits used to carry 9-1-1 calls to the PSAP.
|
Emergency Ring Back
|
The capability of a PSAP attendant to ring the telephone on a held circuit. Requires Calling Party Hold. Also known as re-ring. (A Basic 9-1-1 feature)
|
Emergency Service Central Office Number (ESCO)
|
The information delivered to the PSAP when there is an ANI failure between the end office and the 9-1-1 Control Office. When ANI is not available, the 9-1-1 call is default routed and the ANI display at the PSAP will be “911-0TTT” (or 911-TTTT) with TTT identifying the incoming trunk group.
|
Emergency Service Number (ESN)/ Emergency Service Zone (ESZ)
|
An ESN is a three to five digit number representing a unique combination of emergency service agencies (Law Enforcement, Fire, and Emergency Medical Service) designated to serve a specific range of addresses within a particular geographical area, or Emergency Service Zone (ESZ). The ESN facilitates selective routing and selective transfer, if required, to the appropriate PSAP and the dispatching of the proper service agency(ies).
|
Emergency Service (ES) Trunks
|
Message trunks capable of providing ANI, connecting the serving central office of the 9-1-1 calling party and the designated E9-1-1 Control Office.
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End Office
|
(See central office).
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End User
|
The 9-1-1 caller
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Enhanced 9-1-1 (E9-1-1)
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An emergency telephone system which includes network switching, database and CPE elements capable of providing Selective Routing, Selective Transfer, Fixed Transfer, ANI and ALI.
|
Enhanced 9-1-1 (E9-1-1) Control Office
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The Central Office that provides the tandem switching of calls. It controls delivery of the voice call with ANI to the PSAP and provides Selective Routing, Speed Calling, Selective Transfer, Fixed Transfer, and certain maintenance functions for each PSAP. Also known as Selective Routing Tandem or Selective Router.
|
Enhanced 9-1-1 (E9-1-1)Tandem Office
|
(See E9-1-1 Control Office)
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Essex
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(See Centrex)
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Exchange
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A defined area served by one or more telephone central offices, within which a Local Exchange Carrier furnishes service.
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